Home / Accessory-Silencer Accessories / Dead Air Armament FN 5.7 THREAD ADAPTER 1/2X28 You cannot add "Rugged Suppressors OBSIDIAN9 3 LUG ADAPT 13.5x1L" to the cart because the product is out of stock. Dead Air Armament FN 5.7 THREAD ADAPTER 1/2X28$4500 In stock Dead Air Armament FN 5.7 THREAD ADAPTER 1/2X28 quantity Add to cart SKU: DA422 Category: Accessory-Silencer Accessories Product ID: 33718 Description Description For FN 5.7Requires aftermarket barrelWill not work on OEM barrel Related products Sale! Dead Air Armament WOLVERINE INSERT 24MM RH LONG $8900 Original price was: $8900.$7865Current price is: $7865. Gemtech ADAPTER S&W M&P22C/22LR $6200 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 Original price was: $10000.$8715Current price is: $8715. Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 Original price was: $8900.$7865Current price is: $7865.